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891 lines
19 KiB
891 lines
19 KiB
//////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 1999-2002 Microsoft Corporation
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//
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// Module Name:
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// EnumCPINotifyUI.cpp
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//
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// Description:
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// INotifyUI Connection Point Enumerator implementation.
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//
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// Maintained By:
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// David Potter (DavidP) 14-JUN-2001
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// Geoffrey Pease (GPease) 04-AUG-2000
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//
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//////////////////////////////////////////////////////////////////////////////
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#include "Pch.h"
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#include "EnumCPINotifyUI.h"
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DEFINE_THISCLASS("CEnumCPINotifyUI")
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#define PUNK_BUFFER_GROW_SIZE 10
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//*************************************************************************//
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/////////////////////////////////////////////////////////////////////////////
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// CEnumCPINotifyUI class
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/////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEnumCPINotifyUI::S_HrCreateInstance
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//
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// Description:
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// Create a CEnumCPINotifyUI instance.
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//
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// Arguments:
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// None.
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//
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// Return Values:
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// S_OK
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// Success.
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//
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// E_POINTER
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// The passed in ppunk is NULL.
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//
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// other HRESULTs
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// Object creation failed.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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HRESULT
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CEnumCPINotifyUI::S_HrCreateInstance(
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IUnknown ** ppunkOut
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)
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{
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TraceFunc( "" );
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HRESULT hr = S_OK;
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CEnumCPINotifyUI * pecnui = NULL;
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Assert( ppunkOut != NULL );
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if ( ppunkOut == NULL )
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{
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hr = THR( E_POINTER );
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goto Cleanup;
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} // if:
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pecnui = new CEnumCPINotifyUI();
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if ( pecnui == NULL )
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{
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hr = THR( E_OUTOFMEMORY );
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goto Cleanup;
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} // if:
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hr = THR( pecnui->HrInit() ); // fIsCloneIn = FALSE
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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} // if:
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hr = THR( pecnui->TypeSafeQI( IUnknown, ppunkOut ) );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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} // if:
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Cleanup:
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if ( pecnui != NULL )
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{
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pecnui->Release();
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} // if:
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HRETURN( hr );
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} //*** CEnumCPINotifyUI::S_HrCreateInstance
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEnumCPINotifyUI::CEnumCPINotifyUI
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//
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// Description:
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// Default constructor.
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//
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// Arguments:
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// None.
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//
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// Return Values:
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// None.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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CEnumCPINotifyUI::CEnumCPINotifyUI( void )
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: m_cRef( 1 )
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{
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TraceFunc( "" );
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InterlockedIncrement( &g_cObjects );
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TraceFuncExit();
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} //*** CEnumCPINotifyUI::CEnumCPINotifyUI
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEnumCPINotifyUI::~CEnumCPINotifyUI
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//
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// Description:
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// Destructor.
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//
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// Arguments:
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// None.
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//
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// Return Values:
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// None.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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CEnumCPINotifyUI::~CEnumCPINotifyUI( void )
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{
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TraceFunc( "" );
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IUnknown * punk = NULL;
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if ( m_pList != NULL )
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{
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while ( m_cAlloced != 0 )
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{
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m_cAlloced --;
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punk = m_pList[ m_cAlloced ];
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AssertMsg( m_fIsClone || punk == NULL, "Someone didn't Unadvise before releasing the last Reference." );
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if ( punk != NULL )
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{
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punk->Release();
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} // if:
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} // while: m_cAlloced
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TraceFree( m_pList );
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} // if:
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InterlockedDecrement( &g_cObjects );
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TraceFuncExit();
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} //*** CEnumCPINotifyUI::~CEnumCPINotifyUI
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//*************************************************************************//
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/////////////////////////////////////////////////////////////////////////////
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// CEnumCPINotifyUI -- IUnknown interface.
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/////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEnumCPINotifyUI::AddRef
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//
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// Description:
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// Increment the reference count of this object by one.
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//
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// Arguments:
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// None.
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//
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// Return Value:
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// The new reference count.
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//
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// Remarks:
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// None.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP_(ULONG)
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CEnumCPINotifyUI::AddRef( void )
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{
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TraceFunc( "[IUnknown]" );
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InterlockedIncrement( &m_cRef );
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CRETURN( m_cRef );
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} //*** CEnumCPINotifyUI::AddRef
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CTaskCancelCleanup::Release
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//
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// Description:
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// Decrement the reference count of this object by one.
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//
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// Arguments:
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// None.
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//
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// Return Value:
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// The new reference count.
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//
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// Remarks:
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// None.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP_(ULONG)
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CEnumCPINotifyUI::Release( void )
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{
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TraceFunc( "[IUnknown]" );
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LONG cRef;
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cRef = InterlockedDecrement( &m_cRef );
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if ( cRef == 0 )
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{
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TraceDo( delete this );
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} // if:
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CRETURN( cRef );
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} //*** CEnumCPINotifyUI::Release
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEnumCPINotifyUI::QueryInterface
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//
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// Description:
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// Query this object for the passed in interface.
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//
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// Arguments:
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// riidIn
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// Id of interface requested.
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//
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// ppvOut
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// Pointer to the requested interface.
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//
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// Return Value:
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// S_OK
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// If the interface is available on this object.
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//
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// E_NOINTERFACE
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// If the interface is not available.
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//
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// E_POINTER
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// ppvOut was NULL.
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//
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// Remarks:
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// None.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumCPINotifyUI::QueryInterface(
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REFIID riidIn
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, LPVOID * ppvOut
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)
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{
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TraceQIFunc( riidIn, ppvOut );
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HRESULT hr = S_OK;
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//
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// Validate arguments.
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//
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Assert( ppvOut != NULL );
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if ( ppvOut == NULL )
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{
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hr = THR( E_POINTER );
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goto Cleanup;
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} // if:
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//
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// Handle known interfaces.
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//
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if ( IsEqualIID( riidIn, IID_IUnknown ) )
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{
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*ppvOut = static_cast< IEnumConnections * >( this );
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} // if: IUnknown
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else if ( IsEqualIID( riidIn, IID_IEnumConnections ) )
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{
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*ppvOut = TraceInterface( __THISCLASS__, IEnumConnections, this, 0 );
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} // else if: IEnumConnections
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else
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{
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*ppvOut = NULL;
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hr = E_NOINTERFACE;
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} // else
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//
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// Add a reference to the interface if successful.
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//
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if ( SUCCEEDED( hr ) )
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{
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((IUnknown *) *ppvOut)->AddRef();
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} // if: success
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Cleanup:
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QIRETURN_IGNORESTDMARSHALLING( hr, riidIn );
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} //*** CEnumCPINotifyUI::QueryInterface
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//*************************************************************************//
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/////////////////////////////////////////////////////////////////////////////
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// CEnumCPINotifyUI -- IEnumConnectionPoints interface.
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/////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEnumCPINotifyUI::Next
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//
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// Description:
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// Enumerator Next method.
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//
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// Arguments:
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// cConnectionsIn
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// How many items requested. Also tells us how bing rgcd.
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//
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// rgcdOut
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// Array that gets the data.
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//
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// pcFetchedOut
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// How many did we place in the array.
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//
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// Return Values:
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// S_OK
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// Success.
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//
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// S_FALSE
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// cConnectionsIn > *pcFetchedOut. Did not return as many items
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// as the caller asked for.
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//
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// Other HRESULT errors.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumCPINotifyUI::Next(
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ULONG cConnectionsIn
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, LPCONNECTDATA rgcdOut
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, ULONG * pcFetchedOut
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)
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{
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TraceFunc( "[IEnumConnectionPoints]" );
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ULONG cIter;
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HRESULT hr = S_FALSE;
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if ( pcFetchedOut != NULL )
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{
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*pcFetchedOut = 0;
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} // if:
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for( cIter = 0
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; ( cIter < cConnectionsIn ) && ( m_cIter < m_cCurrent )
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; m_cIter ++
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)
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{
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IUnknown * punk = m_pList[ m_cIter ];
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if ( punk != NULL )
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{
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hr = THR( punk->TypeSafeQI( IUnknown, &rgcdOut[ cIter ].pUnk ) );
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if ( FAILED( hr ) )
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{
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goto Error;
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} // if:
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rgcdOut[ cIter ].pUnk = TraceInterface( L"EnumCPINotifyUI!IUnknown", IUnknown, rgcdOut[ cIter ].pUnk, 1 );
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rgcdOut[ cIter ].dwCookie = m_cIter + 1;
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cIter ++;
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} // if:
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} // for: cIter
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if ( cIter != cConnectionsIn )
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{
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hr = S_FALSE;
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} // if:
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else
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{
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hr = S_OK;
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} // else:
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if ( pcFetchedOut != NULL )
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{
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*pcFetchedOut = cIter;
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} // if:
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Cleanup:
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HRETURN( hr );
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Error:
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while ( cIter != 0 )
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{
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cIter--;
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rgcdOut[ cIter ].pUnk->Release();
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} // while:
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goto Cleanup;
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} //*** CEnumCPINotifyUI::Next
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEnumCPINotifyUI::Skip
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//
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// Description:
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// Enumerator Skip method.
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//
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// Arguments:
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// cConnectionsIn
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// Number of items to skip.
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//
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// Return Values:
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// S_OK
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// Success.
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//
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// S_FALSE
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// The number to skip put us at the end of the list.
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//
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// Other HRESULT errors.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumCPINotifyUI::Skip(
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ULONG cConnectionsIn
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)
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{
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TraceFunc( "[IEnumConnectionPoints]" );
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HRESULT hr = S_OK;
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m_cIter += cConnectionsIn;
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if ( m_cIter >= m_cCurrent )
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{
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m_cIter = m_cCurrent;
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hr = S_FALSE;
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} // if:
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HRETURN( hr );
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} //*** CEnumCPINotifyUI::Skip
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEnumCPINotifyUI::Reset
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//
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// Description:
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// Enumerator Reset method.
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//
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// Arguments:
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// None.
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//
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// Return Values:
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// S_OK
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// Success.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumCPINotifyUI::Reset( void )
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{
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TraceFunc( "[IEnumConnectionPoints]" );
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HRESULT hr = S_OK;
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m_cIter = 0;
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HRETURN( hr );
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} //*** CEnumCPINotifyUI::Reset
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|
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEnumCPINotifyUI::Clone
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//
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// Description:
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// Enumerator Clone method.
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//
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// Arguments:
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// ppEnumOut
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// The new enumerator that we are cloning ourselves into.
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//
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// Return Values:
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// S_OK
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// Success.
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//
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// Other HRESULT errors.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumCPINotifyUI::Clone(
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IEnumConnections ** ppEnumOut
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)
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{
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TraceFunc( "[IEnumConnectionPoints]" );
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|
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HRESULT hr = S_OK;
|
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|
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CEnumCPINotifyUI * pecp = new CEnumCPINotifyUI();
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if ( pecp == NULL )
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{
|
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hr = THR( E_OUTOFMEMORY );
|
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goto Cleanup;
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} // if:
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|
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hr = THR( pecp->HrInit( TRUE ) ); // fIsCloneIn = TRUE
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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} // if:
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|
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hr = THR( pecp->HrCopy( this ) );
|
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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} // if:
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|
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hr = THR( pecp->TypeSafeQI( IEnumConnections, ppEnumOut ) );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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} // if:
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*ppEnumOut = TraceInterface( L"EnumCPINotifyUI!IEnumConnections", IEnumConnections, *ppEnumOut, 1 );
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|
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pecp->Release();
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pecp = NULL;
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Cleanup:
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|
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if ( pecp != NULL )
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{
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delete pecp;
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} // if:
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|
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HRETURN( hr );
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|
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} //*** CEnumCPINotifyUI::Clone
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|
|
|
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//*************************************************************************//
|
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|
|
|
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/////////////////////////////////////////////////////////////////////////////
|
|
// CEnumCPINotifyUI -- Public methods.
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
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//
|
|
// CEnumCPINotifyUI::HrAddConnection
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//
|
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// Description:
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|
// Add a connection point container to our list of clients.
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|
//
|
|
// Arguments:
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// punkIn
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// The new client object.
|
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//
|
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// pdwCookieOut
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|
// Cookie used to find this client object in our list.
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//
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// Return Values:
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// S_OK
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// Success.
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//
|
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// Other HRESULT errors.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
|
|
HRESULT
|
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CEnumCPINotifyUI::HrAddConnection(
|
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IUnknown * punkIn
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, DWORD * pdwCookieOut
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)
|
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{
|
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TraceFunc( "" );
|
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|
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HRESULT hr = S_FALSE;
|
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|
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ULONG cIter;
|
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|
|
if ( pdwCookieOut == NULL )
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{
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hr = THR( E_POINTER );
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goto Cleanup;
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} // if:
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|
|
//
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// See if there is an openning in the currently allocated list.
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//
|
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|
|
for ( cIter = 0; cIter < m_cCurrent; cIter ++ )
|
|
{
|
|
if ( m_pList[ cIter ] == NULL )
|
|
{
|
|
//
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|
// Found an openning... try to use it.
|
|
//
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|
|
hr = THR( punkIn->TypeSafeQI( IUnknown, &m_pList[ cIter ] ) );
|
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|
|
m_pList[ cIter ] = TraceInterface( L"CEnumCPINotifyUI!IUnknown", IUnknown, m_pList[ cIter ], 1 );
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|
|
*pdwCookieOut = cIter + 1;
|
|
|
|
// Doesn't matter if it succeeded or fail, exit.
|
|
goto Cleanup;
|
|
} // if:
|
|
} // for:
|
|
|
|
if ( m_cCurrent == m_cAlloced )
|
|
{
|
|
IUnknown ** pNewList;
|
|
|
|
//
|
|
// Try making some more space.
|
|
//
|
|
|
|
pNewList = (IUnknown **) TraceAlloc( HEAP_ZERO_MEMORY, ( m_cAlloced + PUNK_BUFFER_GROW_SIZE ) * sizeof( IUnknown * ) );
|
|
if ( pNewList == NULL )
|
|
{
|
|
hr = THR( E_OUTOFMEMORY );
|
|
goto Cleanup;
|
|
}
|
|
|
|
CopyMemory( pNewList, m_pList, m_cCurrent * sizeof( IUnknown * ) );
|
|
TraceFree( m_pList );
|
|
|
|
m_pList = pNewList;
|
|
m_cAlloced += PUNK_BUFFER_GROW_SIZE;
|
|
} // if:
|
|
|
|
//
|
|
// Add it to the list.
|
|
//
|
|
|
|
hr = THR( punkIn->TypeSafeQI( IUnknown, &m_pList[ m_cCurrent ] ) );
|
|
if ( FAILED( hr ) )
|
|
{
|
|
goto Cleanup;
|
|
} // if:
|
|
|
|
m_pList[ m_cCurrent ] = TraceInterface( L"CEnumCPINotifyUI!IUnknown", IUnknown, m_pList[ m_cCurrent ], 1 );
|
|
|
|
m_cCurrent ++;
|
|
*pdwCookieOut = m_cCurrent; // starts at ONE, not ZERO
|
|
|
|
Cleanup:
|
|
|
|
HRETURN( hr );
|
|
|
|
} //*** CEnumCPINotifyUI::HrAddConnection
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// CEnumCPINotifyUI::HrRemoveConnection
|
|
//
|
|
// Description:
|
|
// Remove the client identified by the passed in cookie from the list.
|
|
//
|
|
// Arguments:
|
|
// dwCookieIn
|
|
// The cookie of the client that is to be removed from the list.
|
|
//
|
|
// Return Values:
|
|
// S_OK
|
|
// Success.
|
|
//
|
|
// Other HRESULT errors.
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
HRESULT
|
|
CEnumCPINotifyUI::HrRemoveConnection(
|
|
DWORD dwCookieIn
|
|
)
|
|
{
|
|
TraceFunc( "" );
|
|
|
|
HRESULT hr;
|
|
|
|
if ( dwCookieIn == 0 || dwCookieIn > m_cCurrent )
|
|
{
|
|
hr = THR( E_INVALIDARG );
|
|
goto Cleanup;
|
|
} // if:
|
|
|
|
if ( m_pList[ dwCookieIn - 1 ] == NULL )
|
|
{
|
|
hr = THR( E_INVALIDARG );
|
|
goto Cleanup;
|
|
} // if:
|
|
|
|
m_pList[ dwCookieIn - 1 ]->Release();
|
|
m_pList[ dwCookieIn - 1 ] = NULL;
|
|
|
|
hr = S_OK;
|
|
|
|
Cleanup:
|
|
|
|
HRETURN( hr );
|
|
|
|
} //*** CEnumCPINotifyUI::HrRemoveConnection
|
|
|
|
|
|
//*************************************************************************//
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// CEnumCPINotifyUI -- Private methods.
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// CEnumCPINotifyUI::HrInt
|
|
//
|
|
// Description:
|
|
// Do any initialization that may fail here.
|
|
//
|
|
// Arguments:
|
|
// fIsCloneIn
|
|
// Is this instance a clone?
|
|
//
|
|
// Return Values:
|
|
// S_OK
|
|
// Success.
|
|
//
|
|
// Other HRESULT errors.
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
HRESULT
|
|
CEnumCPINotifyUI::HrInit(
|
|
BOOL fIsCloneIn // = FALSE
|
|
)
|
|
{
|
|
TraceFunc( "" );
|
|
|
|
// IUnknown stuff
|
|
Assert( m_cRef == 1 );
|
|
|
|
// IEnumConnectionPoints
|
|
Assert( m_cAlloced == 0 );
|
|
Assert( m_cCurrent == 0 );
|
|
Assert( m_cIter == 0 );
|
|
Assert( m_pList == NULL );
|
|
Assert( m_fIsClone == FALSE );
|
|
|
|
m_fIsClone = fIsCloneIn;
|
|
|
|
// INotifyUI
|
|
|
|
HRETURN( S_OK );
|
|
|
|
} //*** CEnumCPINotifyUI::HrInit
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// CEnumCPINotifyUI::HrCopy
|
|
//
|
|
// Description:
|
|
// Copy from the passed in enumerator.
|
|
//
|
|
// Arguments:
|
|
// pecpIn
|
|
// The source that we are to copy from.
|
|
//
|
|
// Return Values:
|
|
// S_OK
|
|
// Success.
|
|
//
|
|
// Other HRESULT errors.
|
|
//
|
|
//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
HRESULT
|
|
CEnumCPINotifyUI::HrCopy(
|
|
CEnumCPINotifyUI * pecpIn
|
|
)
|
|
{
|
|
TraceFunc( "" );
|
|
|
|
HRESULT hr = S_FALSE;
|
|
ULONG cIter;
|
|
|
|
Assert( m_cAlloced == 0 );
|
|
Assert( m_cCurrent == 0 );
|
|
Assert( m_pList == NULL );
|
|
|
|
m_pList = (IUnknown **) TraceAlloc( HEAP_ZERO_MEMORY, pecpIn->m_cCurrent * sizeof( IUnknown * ) );
|
|
if ( m_pList == NULL )
|
|
{
|
|
hr = THR( E_OUTOFMEMORY );
|
|
goto Cleanup;
|
|
} // if:
|
|
|
|
m_cCurrent = m_cAlloced = pecpIn->m_cCurrent;
|
|
m_cIter = 0;
|
|
|
|
for ( cIter = 0; cIter < pecpIn->m_cCurrent; cIter++ )
|
|
{
|
|
//
|
|
// Does the source have a pointer at the current index? If it does then "copy" it,
|
|
// otherwise NULL out that index in our copy...
|
|
//
|
|
|
|
if ( pecpIn->m_pList[ cIter ] != NULL )
|
|
{
|
|
hr = THR( pecpIn->m_pList[ cIter ]->TypeSafeQI( IUnknown, &m_pList[ cIter ] ) );
|
|
if ( FAILED( hr ) )
|
|
{
|
|
goto Cleanup;
|
|
} // if:
|
|
|
|
m_pList[ cIter ] = TraceInterface( L"EnumCPINotifyUI!IUnknown", IUnknown, m_pList[ cIter ], 1 );
|
|
} // if:
|
|
else
|
|
{
|
|
m_pList[ cIter ] = NULL;
|
|
} // else:
|
|
} // for:
|
|
|
|
hr = S_OK;
|
|
|
|
Cleanup:
|
|
|
|
HRETURN( hr );
|
|
|
|
} //*** CEnumCPINotifyUI::HrCopy
|